How this works / Signed record

Problem revision

Is there any confirmed sub-parsec supermassive black hole binary?

This record was signed by PubPhys and added to the public log. Download the proof and check it with the open verifier: it recomputes every fingerprint, checks the PubPhys signature against the published key, finds the entry in the log and checks the Bitcoin date, without relying on this site.

Record hash
9e8fb02294e83dd82b6113fdc9bc9dae39fdbcc21cf0cb601a680958367824fa
Content hash
37c10969e1881f3e7d4c3cac9f2e7acfea814e04e90fd2e67ec03ba5d6651c29
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
605
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:55Z — the Bitcoin date is the one that counts